User's Manual Part 1

Configuration
HiPer XT Operator’s Manual
2-28
When finished configuring the radio modem, always disconnect from
Modem-TPS before exiting to prevent conflicts with serial port
management.
There are two scenarios for configuring the radio-modem:
• with a dedicated channel
• with the FCS mode
Set Radio Link Parameters for a Dedicated
Channel
1. From the Protocol control, select between TPS and PDL.
• TPS – Select this protocol if all of the radio-modems at your
jobsite are manufactured by Topcon Positioning Systems.
• PDL – Select this protocol if you use PDL radio-modem(s)
together with TPS radio-modem(s) at the jobsite.
2. From the Modulation Type control, select a modulation scheme
that will be used by your base radio-modem. It can be either
4-
Level-FSK
(Frequency Shift Keying) or GMSK (Gaussian
Minimum Shift Keying). The following table shows you what
modulation technique can be used at a specific link rate.
3. From the Link Rate control, select the rate at which data is
transmitted over the RF link. The UHF radio-modem supports
4800, 9600, and 19200 baud. Note that this setting affects the
Modulation Type control and vice versa.
4. From the TX control, select the operating frequency that will be
used by your base radio-modem to transmit differential data.
5. Select Scrambling. If enabled, this parameter provides more
robust data communications over the areas with possible
interference.
If the Link Rate is... Use...
4800 baud GMSK
9600 baud GMSK or 4-Level-FSK
19200 baud 4-Level-FSK